feat(project): author project/sprints/0001-shared-task-baseline.md for the planning-suite mission backfill

Author: nolte

project/sprints/0001-shared-task-baseline.md

@@ -0,0 +1,40 @@
+---
+number: 1
+status: closed
+started: 2026-07-02
+ended: 2026-07-02
+value_statement: Downstream nolte/* projects include the reusable Taskfile modules remotely and get consistent task targets across local and CI runs without copying Taskfile logic.
+artifact_ref: develop (shipped capability, pre-planning-suite)
+roadmap_items: [R-1]
+features: [F-1]
+---
+
+## Goal
+
+Downstream `nolte/*` projects obtain consistent task targets from one
+centralised, remotely included collection of reusable `Taskfile` modules. The
+consumer no longer copies `Taskfile` logic into each repository. F-1
+`acceptance-1` verifies success: a consumer project includes a module remotely
+through `TASK_COLLECTION_BASE` and its task target runs green.
+
+## Features
+
+- [F-1](../features/reusable-taskfile-adoption.md): Reusable-Taskfile adoption, status: done
+
+## Out of scope
+
+- Pinning concrete consumer identities and pin strategies. `AUDIENCES.md` tracks
+  these as open questions, outside the shipped scope.
+- The wrapped tools themselves (`kind`, `mkdocs`, `kubectl`, `helm`,
+  `pre-commit`, ArgoCD), which sit outside the bounded context.
+
+## Review notes
+
+Retroactive reconciliation (2026-07-02): `taskfiles`' `reusable-taskfile-collection`
+capability already carried `status: active` and served the portfolio before this
+repository adopted the planning suite (issue `nolte/claude-shared#262`
+mission-authoring backfill). This sprint therefore records roadmap item R-1 and
+feature F-1 as `done`, and itself as `closed`. That documents the delivered
+minimum viable product rather than new planned work. The value verifier F-1
+`acceptance-1` already holds: sibling repositories wire these modules and run
+their task targets.